Rate of change of an objects velocity.

The force exerted on an object by the air, when it moves through it.

The distance moved by an object divided by the time taken for this to happen. Scalar

The length and direction of the straight line from the initial position of an object to its position at a later time. Vector

The length of the path along which an object moves. scalar.

A way of summarising the motion of an object by showing how far it has moved from its starting point at every instant during its journey.

A push or a pull.

A force that involves objects that are not physically touching

A force that opposes motion between two surfaces that are in contact

A pair of forces that are equal in strength, but opposite in direction.

The rate at which an object is moving at a given moment in time.

The energy that something has owing to its motion.

A property of any moving object. Mass x Velocity

The force exerted by a hard surface on an object that presses on it.

The sum, taking their directions into account, of all the forces acting on an object.

Speed in a given direction.

A graph that can be used to plot the velocity of an object versus time.

A force that involves objects that are physically touching

Only has a size

Has a size and a direction

change in velocity over time. Vector

s = displacement

See image

See image

See image

See image

9.8 m/s/s

The affect of gravity on mass. On earth 9.8N/Kg

the amount of matter in an object

If the resultant force is 0 - the object remains stationary or is travelling at a constant speed

F = ma

For every action there is an equal sized force in the opposite direction

the property of an object to remain in a constant state unless acted on by an external resultant force

The distance it takes to brake and stop

The distance it takes to react and press the brake pedal

Braking distance + thinking distance